Intravenous antibiotic will be given before skin incision. Hypotension will be managed with intravenous phenylephrine or ephedrine at the discretion of the anaesthesiologist. Intra-operative fluid 8-10ml/kg/hr will be infused as maintenance. Also intravenous bolus of fluid will be given for replacement of blood loss. Infusion fluid warmer and thermal blanket will be used with the aim of keeping a core temperature of 35.5-37.5 degrees Celsius.